Very Nice!
I like this song, the sounds are really good. Nice flowing melody and good chord progressions, the description you've provided fits the music perfectly. But as with every song I have my opinions on some things. Generally I really like this style of music, and the sounds you have are near perfect. This is one of the best classical compositions I have heard on this site, yet I feel a few composition elements were missing, in my opinion.
The start was good, nice and empty feeling. The strings came in very strong yet quiet, set the mood well. The rest of the song had plenty of very nice progressions and the feeling remained somber and sad. The one thing I think was missing was good dynamic contrast. There really wasn't much of a climax to it. There was a climax of sort, but not really a strong emotional feeling that one would experience after loosing a son. It's really missing that one tear jerking moment, that moment in time where the father absolutely breaks down and begs the rain to mask his sorrow. This is in my opinion, other then that it is near perfection. You have a very good song here, it was beautiful. Keep it up, I'm glad to see this is 2x platinum, well deserved.